Gene therapy approaches for equine osteoarthritis.
Authors: Thampi Parvathy, Samulski R Jude, Grieger Joshua C, Phillips Jennifer N, McIlwraith C Wayne, Goodrich Laurie R
Journal: Frontiers in veterinary science
Summary
# Editorial Summary: Gene Therapy for Equine Osteoarthritis Articular cartilage's limited capacity for self-repair means that joint injuries frequently progress to osteoarthritis, a debilitating condition affecting both equine and human patients; this review examines how gene therapy—which uses viral or non-viral vectors to deliver therapeutic molecules directly into joints and reprogram cells to produce high levels of target proteins—represents a promising therapeutic direction for OA management. Viral vector-based approaches have already demonstrated sustained therapeutic transgene expression within the equine joint, suggesting technical feasibility for clinical application. Horses serve as particularly valuable models for OA research because they naturally develop the condition, possess joint anatomy and biomechanics similar to humans, and respond to comparable diagnostic imaging and therapeutic protocols, making findings directly translatable to equine patients and human medicine alike. The emerging field recognises that effective OA treatment must address not just cartilage damage but the whole joint organ system, fundamentally shifting therapeutic strategy. For equine practitioners, this review underscores that gene therapy research conducted in horses has immediate clinical relevance—advancing treatments tested in naturally occurring equine OA could directly benefit affected patients whilst simultaneously accelerating progress in human orthopaedic medicine.
Read the full abstract on PubMed
Practical Takeaways
- •Gene therapy represents an emerging experimental treatment option for equine OA that may progress to clinical use; monitor literature for clinical trial opportunities
- •Current evidence is still preclinical/experimental—gene therapy is not yet standard clinical practice, so continue conventional lameness management strategies
- •Understanding that OA involves multiple joint tissues (not just cartilage) supports multimodal therapeutic approaches beyond single-agent interventions
Key Findings
- •Gene therapy using viral vectors has demonstrated successful gene transfer with persistent therapeutic transgene expression in equine joints
- •Horses represent OA pathology more accurately than other animal models due to anatomical and biomechanical similarities to humans
- •A whole-organ approach to OA therapy is needed as multiple joint tissues beyond cartilage contribute to osteoarthritis pathogenesis
- •Equine patients experience naturally occurring OA and similar therapies to humans, making them a clinically relevant translational model